MSefi.com read only forum (Jan.15,2018)

^^^ Same question here actually, I've got two turbos bolted to mine. Do you have to consider boost? I would imagine you would, as forced induction increases the air flow. If so a large single throttle body like I mentioned would probably suffice (90mm)? cheers very late in the discussion, but hope ...

surprised no one has mentioned, this, O2 sensors are pressure sensitive. If you run it pre-turbo, you won't get accurate results I've seen graphs of pressure vs skew for the Bosch LSU-4, couldn't find it right now though, but this goes for all O2's, not just WB's I'd run a WBO2 on the dump pipe. Its...

someone that has done this type of conversion before would be better at answering that (I play with bikes, never done ITB's on a car)....but keep in mind, ITB's will lower your vacuum. Even with mild cams, 10-12"/hg is about the most vacuum you will see, and it drops off quickly when cruising W...

you didn't like my first answer on that?

There should be vacuum ports that feed a log that feeds the stock MAP sensor. Those are the only stock vacuum ports. If you don't like them, you'll have to add new ones

rob_lee wrote:So in other words i just tape up the wires on megasquirt that would normally go to the ICV?


Rob


PS.. Thanks for you help Uncle Bob

exactly. Not much point on using the function when this does the same thing in a simpler manner

Also will not using an electrical idle control valve upset the megasquirt management? what electric idle control valve? The one on the ITB's isn't electronic. But MS doesn't really care how the throttle is manipulated. Its job is to give the right amount of fuel for a given RPM/intake pressure. If ...

rob_lee wrote:where can i get a take off point for the brake servo?

Will it be easier to tap into the inlet manifold then?

anything between the butterflies and the intake valves. No vacuum anywhere else.

You can tie the individual vacuum ports together, or make new ones.

why remove the slides? It will improve drivability without effecting performance.

edit: I misread your question. There is no vacuum at those outlets. Those ports are for intake pressure reference for the slides (IE, pressure changes due to ram air on the stock bike)

simplicity is best. I'd use the stock valve too.....have to route coolant lines to it, but shouldn't be hard.

Honda car EFI engines used the same setup for decades. Its a good system IMO

that is the cold idle control. coolant is ran through it, and raises the idle until the motor warms up.

as a general rule, you use the same throttle body size you would use for a non-blown engine of simular calibar. For example, a "reasonable" turbo'd V8 (stock 350 SBC for example) engine will usually be happiest with a 600CFM carb. An extreme turbo'd V8, will be 800+ CFM. I don't know what ...